Quarterly report pursuant to Section 13 or 15(d)

Credit Facilities (Details)

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Credit Facilities (Details) (USD $)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 3 Months Ended 9 Months Ended
Dec. 31, 2012
Sep. 30, 2013
Sep. 30, 2013
Dec. 31, 2012
Nov. 30, 2011
Oct. 29, 2010
Mowood LLC [Member]
Revolving note payable [Member]
Nov. 30, 2011
Line of Credit [Member]
Sep. 30, 2013
Line of Credit [Member]
Mowood LLC [Member]
Revolving note payable [Member]
Oct. 29, 2011
Line of Credit [Member]
Mowood LLC [Member]
Revolving note payable [Member]
Dec. 31, 2012
Non-Controlling Interest [Member]
Sep. 30, 2013
Key Bank [Member]
Secured Debt [Member]
Sep. 30, 2013
Key Bank [Member]
Secured Debt [Member]
May 08, 2013
Key Bank [Member]
Secured Debt [Member]
Dec. 20, 2012
Key Bank [Member]
Secured Debt [Member]
Line of Credit Facility [Line Items]                            
Line of Credit Facility, Covenant Terms     three years                      
Contributions from noncontrolling interests $ (30,000,000)                 $ (30,000,000)        
Description of variable rate basis             LIBOR       LIBOR LIBOR    
Accrued interest on outstanding balance             0.75% 4.18% 4.00%   4.00% 4.00%   3.25%
Debt Instrument, Interest Rate at Period End                     3.43% 3.43%    
Line of Credit Facility, Periodic Payment, Principal     292,000                      
Required principle payment as percentage of outstanding amount, beginning in year two                     0.42% 0.42%    
Debt issuance cost   1,100,000   1,500,000                    
Maximum borrowing base of revolving note payable         10,000,000 1,300,000             20,000,000 70,000,000
Outstanding principal and accrued interest payable, termination date   Oct. 29, 2013                        
Loan facility secured by assets         10,000,000 1,300,000             20,000,000 70,000,000
Expiration period         180 days                  
Commitment fee percentage         0.25%                  
Amortization of Financing Costs and Discounts   $ 129,000 $ 385,000                      
debt instrument, description of prime rate basis                       Prime Rate    
debt instrument, basis spread on prime rate                       2.75%